Lost range location after the form size changed

[Kun]

Hello,

I use range seletor to associate with a radchartview.

If I associate the RadChartView control to RadRangeSelector both in design time and in program (in the function "form_load"), there is a strange behavior.

After I changed the form size, the range selector will initialize start range and end range by which means it cannot memorize the start/end range set by the movement.

However, if I only do "Me.radRangeSelector1.AssociatedControl" ONCE in the design time or in the program, the problem will be disappeared.

In my opinion, there is a bug in RadRangeSelector. It cannot support AssociatedControl 2 times. This issue doesn't appear for the other proprieties, even I set the other proprieties both in design time and in program.

I made a simple demo, please download here:

https://www.dropbox.com/s/u61lk7yql1ua25f/TestRangeSelector.rar?dl=0

 

In order to reproduce the issue:

step 1. launch the demo

step 2. move range selector

step 3. change the form size

You will see the range selector return to its original location.

You can remove this line in RadForm1_Load:

RadRangeSelector1.AssociatedControl = RadChartView1

 

Or remove the associated control in design time. You will find range selector can memorize the location all the time.

 

It makes us lot of time to find out. If it is a bug, please correct it. If it is not, any explication ?

 

Thank you by advance.

Regards,

 

[Hristo]

Hello Kun,

Indeed there is an issue and I have logged it here: RadRangeSelector: Setting the same RadChartView object as an AssociatedControl causes the range selector to go in an invalid state. Additionally, I have updated your Telerik Points.

As a possible solution, you can use the custom range selector control below: 

Public Class MyRadRangeSelector
    Inherits RadRangeSelector

    Public Overrides Property ThemeClassName As String
        Get
            Return GetType(RadRangeSelector).FullName
        End Get
        Set(value As String)
            MyBase.ThemeClassName = value
        End Set
    End Property

    Public Shadows Property AssociatedControl As RadControl
        Get
            Return MyBase.AssociatedControl
        End Get
        Set(ByVal value As RadControl)

            If MyBase.AssociatedControl Is value Then
                Return
            End If

            MyBase.AssociatedControl = value
        End Set
    End Property
End Class

I hope this will help. Let me know if you have other questions.

Regards,
Hristo
Progress Telerik